Cistern



(No Model.)

G. W; OVERALL,

CISTERN.

No. 274,022. Patented Mar.13,18 83.

' u. PETERS, Phnlu-Lilhugnpher. Wnshi nnnnnnn c.

. l. UNITED STATES PATENT OFFICE.

GEORGE W. OVERALL, OF MEMPHIS, TENNESSEE.

CISTERN.

SPECIFICATION forming part of Letters Patent No. 274,022, dated March 13, 1883;

7 Application filed October 27, 1882. (No model.)

To all whom it may concern:

Be it known that I, GEORGE W. OVERALL, a citizen of the United States, residing at Memphis, in the county of Shelby and State of Tennessee, have invented a new and useful Uistern, of which the following is a specification, reference being bad to the accom panying drawings.

Figure l is a vertical sectional view of a cis tern constructed of my. improved tiling. Fig. 2 is a horizontal sectional view of the same on the line 00 m, and Figs. 3, f1, 5, and 6 are detail views of the tiles.

The same letters refer to the same parts in all the figures.

This invention relates to cisterns or waterreservoirs; and it consists in certain improve ments in the construction of the same, whereby a durable, water-tight, and capacious cistern may be constructed easily and inexpensively.

Patent No. 265,277, granted to myself on the 3d day of October, 1882, covers a cistern consistingof a howl-shaped bottomsection,

tubular tapering intermediate sections, and a flanged top section connected by groove-andtonguejoints. While by this construction an exceedingly desirable cistern may be produced, I have found some difficulty in makin g the sections of sufficient size for cisterns of large capacity, the expense of constructing and manipulating such large sections, as well as the danger of breakage, being unwarrantebly great. Hence'I have devised my present improvement, which consists essentially in constructing each of the several ring-shaped sections of a number of smaller tiles connected by vertical groove-and-tongue joints, as I shall now proceed more fully. to describe with reference tothe drawings.

A represents the bottom tile,'which is circular in shape, concave or bowl-shaped, and

. provided atits edge with an annular groove, B.

0 0 are the tiles composing the first course of the cistern. Said tiles are somewhat curved or concave, so as to form an upward continuation of the bowlshaped bottom section, to the upper edge of which they are fitted, their lower edges being provided with tongues D to enter the groove B. The tiles 0 have grooves E at their upperedges, and

each of said tiles 0 is provided at one side with a tongue, F, and at the other side with a groove, G, by which they may be fitted together and connected in such a manner as to form a. water-tight structure.

Above the tiles 0 one or more courses may be placed of tiles H, having grooves lat their upper edge and at one side, and tongues J at the other side and at the lower edge, enabling them to be fitted together in circular or ring-shapedcourses to the desired height.

A top or finishing course is then added,-con sisting of tiles K, having tongues L at'their lower edges and at one side, grooves M at the other side, and flanges N at their upper edges, which complete the strustnre.

In operation an excavation is first made of the required size, which may be readily estima ed beforehand. The cistern is then built within saidexcavatiou, the joints being made tight.

by the use of cement.

The tiling used in the construction may be produced at a reasonable cost, it may be readily transported, and cisterns of any capacity, large or small, may be readily constructed therewith.

I am aware that tiles for roofing and like purposes have been madewith grooves at two adjoining sides and tongues at the two remaining adjoining sides. While such tiles, however, being usually flat, have not been applicable to the construction of cisterncurhin gs, I do not wish to be understood as broadly claiming tiles having grooves and flanges thus arranged and disposed; but

I claim as my invention- 1. Tiles for cistern-curbings, provided with tongues at their lower edge and at one side,

and grooves at their upper edge and at the tongned tiles, joined,-as described, in circular courses, and the top course of grooved-andtongued and flanged tiles, all arranged as set forth.

3. The hereiudescribed cistern curbing,

GEORGE WHITFIELD OVERALL.

Witnesses:

F. T. EDMONDSON, CHARLES GOODLETT. 

